Arc-Welding Helped Speed Construction of the "Big-Inch" Oil Pipe Line by Walter L. Greene is a historical illustration that documents the industrial advancements made during World War II. The painting depicts workers using arc-welding techniques to construct the "Big-Inch" oil pipeline, a crucial infrastructure project that helped supply the war effort with much-needed oil.

The detailed composition shows the workers in action, with sparks flying from the welding process, highlighting the intensity and importance of their work. Greene’s illustration captures the spirit of progress and innovation that defined this period, while also paying homage to the laborers who made such projects possible.